blob: e330ee79430e058e34131b3de79698a1cf828019 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
; Make sure this testcase codegens to the fabs instruction, not a call to fabsf
; RUN: llc < %s -mtriple=i686-apple-macosx -mattr=-sse2,-sse3,-sse | FileCheck %s
; RUN: llc < %s -mtriple=i686-apple-macosx -mattr=-sse,-sse2,-sse3 -enable-unsafe-fp-math -enable-no-nans-fp-math | FileCheck %s --check-prefix=UNSAFE
; RUN: llc < %s -mtriple=x86_64-apple-macosx -O0 | FileCheck %s --check-prefix=NOOPT
declare float @fabsf(float)
declare x86_fp80 @fabsl(x86_fp80)
; CHECK-LABEL: test1:
; UNSAFE-LABEL: test1:
; NOOPT-LABEL: test1:
define float @test1(float %X) {
%Y = call float @fabsf(float %X) readnone
ret float %Y
}
; CHECK: {{^[ \t]+fabs$}}
; UNSAFE: {{^[ \t]+fabs$}}
; CHECK-NOT: fabs
; UNSAFE-NOT: fabs
; NOOPT-NOT: fabsf
; CHECK-LABEL: test2:
; UNSAFE-LABEL: test2:
; NOOPT-LABEL: test2:
define double @test2(double %X) {
%Y = fcmp oge double %X, -0.0
%Z = fsub double -0.0, %X
%Q = select i1 %Y, double %X, double %Z
ret double %Q
}
; fabs is not used here.
; CHECK-NOT: fabs
; NOOPT-NOT: fabs
; UNSAFE: {{^[ \t]+fabs$}}
; UNSAFE-NOT: fabs
; CHECK-LABEL: test3:
; UNSAFE-LABEL: test3:
; NOOPT-LABEL: test3:
define x86_fp80 @test3(x86_fp80 %X) {
%Y = call x86_fp80 @fabsl(x86_fp80 %X) readnone
ret x86_fp80 %Y
}
; CHECK: {{^[ \t]+fabs$}}
; UNSAFE: {{^[ \t]+fabs$}}
; NOOPT: {{^[ \t]+fabs$}}
; CHECK-NOT: fabs
; UNSAFE-NOT: fabs
; NOOPT-NOT: fabs
|
